What is Chuck Palahniuk's best book?

In a recent interview, writerChuck Palahniuksaid that of his 12 novels so far, "Pygmy," published in 2009, is his favorite. He says on his website that his longtime editor Gerry Howard considered it the best thing he had written to that date. While it was refreshing not to hear Palahniuk say his newest ("Damned") was his favorite, it made us wonder what book is considered best by his many fans.

So tell us: Which of Palahniuk's 12 novels that you have read is your favorite, and why? (If you want to name his worst, feel free.)